Shock-absorbing sleeving block and fixing assembly for extension bar of corner marking instrument

Abstract

The utility model discloses a damping sleeving block and a fixing assembly for an extension bar of a corner marking instrument. The damping sleeving block comprises a base with a mounting hole; the upper surface of the base is fixedly connected with a vertical fixing block, and a small hole is formed in the upper portion of the fixing block. The lower end of an elastically deformable sheet is fixedly connected with the base, and the upper end of the elastically deformable sheet is fixedly provided with a sheath for sleeving the extension bar; the thin sheets and the fixing blocks are arranged in parallel at intervals, a plurality of damping components are arranged between the thin sheets and the fixing blocks, and the two ends of each damping component abut against the corresponding thin sheet and the corresponding fixing block respectively; one end of the sheath is inserted into the small hole, and a gap is reserved between the outer wall of the sheath and the inner wall of the small hole. The device is simple and reliable in structure and convenient to install and maintain, meanwhile, the influence of external vibration on the corner mark instrument is isolated, meanwhile, the external vibration transmitted to the installation support is isolated through the damping effect of the stainless steel elastic piece and the spring, and meanwhile vibration of the fixed extension rod of the corner mark instrument can be controlled through the stainless steel elastic piece, the spring and the sheath.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine testing, in particular to a shock-absorbing set block and a fixing component of an extension rod of a corner marker. Background Art

[0002] When the engine is undergoing combustion test and torsional vibration test, it is generally necessary to install a bevel gauge concentrically at the free end of the crankshaft to provide a speed signal. The measurement accuracy directly affects the accuracy and credibility of the measurement results. The bevel gauge generally has a protruding rod for installation on the side, which is connected to the mounting bracket to fix the circumferential direction of the bevel gauge. The mounting bracket is generally fixed to the engine body, but the engine body itself will also generate vibration during the operation of the engine, which will be transmitted to the mounting bracket, indirectly affecting the test results of the bevel gauge, and in severe cases, the bevel gauge will be damaged.

[0003] In the prior art, the fixed connecting light rod 5 recorded in the patent "A universal angle marker fixing tool" with announcement number CN219082753U is equivalent to the protruding rod mentioned above, which is connected to the fixed connecting sleeve in a set manner, but it does not have the function of blocking the vibration of the engine itself, and the influence of the engine vibration on the angle marker is still relatively serious. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a shock-absorbing set block and a fixing assembly for the extension rod of the bevel marker. The purpose is to reduce the transmission of engine vibration to the bevel marker by designing a set block with a shock-absorbing function, thereby improving the measurement accuracy of the bevel marker and protecting the bevel marker from damage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shock-absorbing set block for an extension rod of a protractor, comprising a base with a mounting hole; a vertical fixed block is fixedly connected to the upper surface of the base, and a small hole is provided on the upper part of the fixed block; the lower end of an elastically deformable thin sheet is fixedly connected to the base, and a protective sleeve for fitting the extension rod is fixedly provided on the upper end of the thin sheet; the thin sheet is parallelly and spaced apart from the fixed block, and a plurality of shock-absorbing components are provided between the thin sheet and the fixed block, and two ends of the shock-absorbing components respectively support the thin sheet and the fixed block; one end of the protective sleeve is inserted into the small hole, and a gap is left between the outer wall of the protective sleeve and the inner wall of the small hole.

[0006] As a further optimization, the shock absorbing component is a spring or a rubber block.

[0007] As a further optimization, the thin sheet is a stainless steel spring sheet.

[0008] As a further optimization, a hole is provided in the middle of the fixing block.

[0009] The utility model also provides a fixing assembly of a protruding rod of a corner marker, comprising the shock absorbing sleeve block of the protruding rod of the corner marker as mentioned above.

[0010] As a further optimization, it also includes a mounting bracket, the lower end of which is provided with a connecting hole for mounting on the engine body, and the upper part of which is detachably connected to the adjustment bracket; the adjustment bracket is provided with a long hole corresponding to the mounting hole, for the lower end of the base to be detachably mounted on the adjustment bracket by a bolt assembly.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model has a simple and reliable structure and is easy to install and maintain. It can isolate the influence of external vibration on the angle marker. At the same time, the vibration reduction effect of the stainless steel spring piece and the spring can isolate the external vibration transmitted to the mounting bracket. At the same time, the vibration of the fixed extension rod of the angle marker itself can also be controlled by the stainless steel spring piece, the spring and the sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation structure of the fixing assembly of Example 1 of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the vibration-damping set block of Example 1 of the utility model.

[0015] The correspondence between the technical features and the reference numerals in the figure is: engine body 1; crankshaft 2; angle marker 3; extension rod 4; shock-absorbing set block 5; adjustment bracket 6; mounting bracket 7; fixing block 8; stainless steel spring 9; sheath 10; spring 11; base 12; small hole 13; mounting hole 14; long hole 15; connecting hole 16. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] See also Figure 1-2The utility model provides a technical solution: a shock-absorbing set block for an extension rod of a protractor, comprising a base 12 with a mounting hole 14; a vertical fixing block 8 is fixedly connected to the upper surface of the base 12, and a small hole 13 is provided on the upper part of the fixing block 8; the lower end of an elastically deformable thin sheet is fixedly connected to the base 12, and a sheath 10 for sheathing the extension rod 4 is fixedly provided on the upper end thereof; the thin sheet is parallelly and spaced apart from the fixing block 8, and a plurality of shock-absorbing components are provided between the thin sheet and the fixing block 8, and the two ends of the shock-absorbing components respectively support the thin sheet and the fixing block 8; one end of the sheath 10 is inserted into the small hole 13, and a gap is left between the outer wall of the sheath 10 and the inner wall of the small hole 13.

[0018] It can be seen that the thin sheet has a certain rigidity and elasticity, and is used to install the sleeve 10 and provide a certain vibration reduction function; the spring 11 is installed between the fixed block 8 and the spring sheet, and plays a role in connection and vibration reduction, while limiting the axial shaking amount of the sleeve 10. The shock-absorbing set block 5 consists of four parts: the fixed block 8, the thin sheet, the shock-absorbing component and the sleeve 10; the fixed block 8 is connected to the adjustment bracket 6 by bolts to fix the position of the shock-absorbing set block 5, and there is a small hole 13 with a certain gap with the outer circle of the sleeve 10 on the upper part to limit the circumferential shaking amount of the sleeve 10; the sleeve 10 is installed on the thin sheet, and the fixed extension rod 4 of the angle marker 3 is passed through the inside and fixed; the thin sheet has a certain rigidity and elasticity, and is used to install the sleeve 10 and provide a certain vibration reduction function; the spring 11 is installed between the fixed block 8 and the thin sheet, and plays a role in connection and vibration reduction, while limiting the axial shaking amount of the sleeve 10.

[0019] Preferably, the shock absorbing component is a spring 11 or a rubber block, both of which have a shock absorbing function.

[0020] Preferably, the thin sheet is a stainless steel spring sheet 9, which is corrosion-resistant, elastic, strong and durable.

[0021] Preferably, a cavity is provided in the middle of the fixing block 8 to reduce its deadweight.

[0022] The above-mentioned shock-absorbing set block of the protruding rod of the angle marker is applied to a fixing component of the protruding rod of the angle marker. Specifically, the fixing component also includes a mounting bracket 7, and the lower end of the mounting bracket 7 is provided with a connecting hole 16 for mounting on the engine body 1, and the upper part thereof is detachably connected to the adjustment bracket 6; the adjustment bracket 6 is provided with a long hole 15 corresponding to the mounting hole 14, which is used for the lower end of the base 12 to be detachably mounted on the adjustment bracket 6 through a bolt assembly.

[0023] It can be seen that the mounting bracket 7 is installed and fixed on the engine body to fix the entire structure, and can be adjusted in the circumferential direction; one end of the adjustment bracket 6 is fixed on the mounting bracket 7, and the other end is connected to the shock-absorbing set block 5, and the spatial installation position of the shock-absorbing set block 5 can be adjusted by adjusting the position and direction installed on the mounting bracket 7; the shock-absorbing set block 5 is used to fix the fixed extension rod 4 of the bevel gauge 3; the fixed extension rod 4 is used to fix the circumferential extension structure of the bevel gauge 3; the bevel gauge 3 is concentrically connected to the crankshaft 2.

[0024] During assembly, first install the angle marker 3 concentrically on the crankshaft 2; install the mounting bracket 7 at a suitable position on the engine body, but do not tighten it so that it can rotate in the axial direction; insert the fixed extension rod 4 of the angle marker 3 into the sleeve 10 of the shock-absorbing set block 5; connect it with the adjustment bracket 6 through the fixed block 8 of the shock-absorbing set block 5, but do not tighten it, and at the same time adjust the relative positions of the bracket 6, the shock-absorbing set block 5 and the mounting bracket 7 so that the adjustment bracket 6, the shock-absorbing set block 5 and the mounting bracket 7 can be connected at the same time, and ensure that the fixed extension rod 4 set does not fall out of the sleeve 10 of the shock-absorbing set block 5. When the position adjustment is completed, first tighten the mounting bracket 7 and the engine body, then tighten the mounting bracket 7 and the adjustment bracket 6, and finally the shock-absorbing set block 5 and the mounting bracket 7.

[0025] The advantages of this embodiment are that it has a simple and reliable structure, is easy to install and maintain, and can isolate the influence of external vibration on the angle marker 3. At the same time, the vibration-damping effect of the stainless steel spring 9 and the spring 11 isolates the external vibration transmitted to the mounting bracket 7. At the same time, the vibration of the fixed extension rod 4 of the angle marker 3 can also be controlled by the stainless steel spring 9, the spring 11 and the sheath 10.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing set block for an extension rod of a corner marker, comprising a base (12) with a mounting hole (14); characterized in that: The upper surface of the base (12) is fixedly connected to a vertical fixing block (8), and a small hole (13) is provided on the upper part of the fixing block (8); the lower end of the elastically deformable thin sheet is fixedly connected to the base (12), and the upper end thereof is fixedly provided with a sheath (10) for fitting the extension rod (4); The thin sheet and the fixed block (8) are arranged in parallel and at intervals, and a plurality of shock-absorbing components are provided between the thin sheet and the fixed block (8), and the two ends of the shock-absorbing components respectively support the thin sheet and the fixed block (8); One end of the sheath (10) is inserted into the small hole (13), and a gap is left between the outer wall of the sheath (10) and the inner wall of the small hole (13).

2. The shock-absorbing set block of the extension rod of the angle marker according to claim 1, characterized in that: The shock absorbing component is a spring (11).

3. The shock-absorbing set block of the extension rod of the angle marker according to claim 1, characterized in that: The thin sheet is a stainless steel spring sheet (9).

4. The shock-absorbing set block for the extension rod of the angle marker according to claim 1, characterized in that: A hole is provided in the middle of the fixing block (8).

5. A fixing assembly for an extension rod of a corner marker, characterized in that: A shock absorbing set block comprising a protruding rod of a corner marker as claimed in any one of claims 1 to 4.

6. The fixing assembly of the extension rod of the angle marker according to claim 5, characterized in that: It also includes a mounting bracket (7), the lower end of which is provided with a connection hole (16) for mounting on the engine body (1), and the upper part of which is detachably connected to the adjustment bracket (6); the adjustment bracket (6) is provided with a long hole (15) corresponding to the mounting hole (14), and is used for the lower end of the base (12) to be detachably mounted on the adjustment bracket (6) by a bolt assembly.

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